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THE GUIDE TO NATURE. 



monize with the sparkling vegetation 

 that surrounds him. But hark ! the 

 silence is broken by a roaring or his- 

 sing sound, that momentarily grows 

 louder. Our lizard stands erect as if 

 to note the direction of the sound, then 

 with leaps and strides he bounds for 

 the open water, his only place of safety. 

 As he stoops for motive power to leap 

 into the stream, a bolt as of 

 thunder strikes him on the hips with 

 a shock that causes the earth to trem- 

 ble, our saurian has received a mortal 

 wound and he sinks into the water and 

 disappears from view. 



the end of a massive head, armed with 

 lancet-like teeth some four inches in 

 length. His five toes are armed with 

 huge claws with which to tear and 

 rend his victim. But he disappears in 

 the forest. After the gases form in 

 our duck-billed dinosaur, his carcass 

 is raised to the surface, and carried 

 head first with the current. The head 

 drags under the shoulder, and in time 

 the abdominal wall allows the gases 

 to escape the walls collapse, and, 

 stretched on his back at full length, it 

 sinks to burial in the white sand below. 

 This sand rapidly fills the abdominal 



SKULL OF THE FAMOUS TRACHODON NOW IN AMERICAN MUSEUM 

 When cleaned the entire skin impression was found nearly intact in the fine sandstone. 

 The skull lay under the body. Photograph by Charles H. Sternberg. 



His conqueror strides along the 

 shore, lashing himself with his power- 

 ful tail, and emitting angry hisses as 

 his prey goes down. We have a good 

 view of this greatest of all carniverous 

 dinosaur named by Prof. Osborn, Ty- 

 rano saurus, rex., the king of tyrants 

 among lizards. He measures thirty- 

 nine feet from the end of his tail to 



cavity and piles up around the body 

 and preserves it in its normal position. 

 Time wings its flight and slowly the 

 continent is raised, west of the Missis- 

 sippi to the tune of the waters of the 

 Colorado River, which carve out its 

 right of way at the rate of elevation, 

 with its tools gravel and sand. 



The scene changes. The father and 



